Hierarchical Database Example

Recently busy graduate design, the need for document translation. I thought that before the translation of a poor, but always feel not rigorous enough. My graduation project is mainly to help the teacher's institute to be a website, already have a website, but the teacher and I think the old version of the site is very old. So volunteered. The site needs to be refactored, and the Natural Information Architecture section is an important part of it, though it has also been seen quite a bit before, such as "thinking of the OR search in the kitchen" is a sign of thought, but systematically translating the Five Simple Steps team Works of "A Practical G ...

Relative to structured data (the data is stored in the database, it is possible to use two-dimensional table structure to express the implementation data logically, the data that is not convenient to use the database two-dimensional logical table to represent is called unstructured data, including all format Office documents, text, picture, XML, HTML, various kinds of reports, images and audio/ 　　Video information and so on. An unstructured database is a database with a variable field length and a record of each field that can be made up of repeatable or repeatable child fields, not only to handle structured data (such as numbers, symbols, etc.), but also ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall DNS several basic concepts domain name space: refers to the Internet all host's unique and the relatively friendly host name composition space, is the DSN naming system at one level logical tree structure. 　　Each machine can use its own domain namespace to create a private network that is not visible on the Internet. 　　DNS server: The computer on which the DNS service program runs, with a DNS database on the results of the DNS domain tree. DNS client: Also known as parsing ...

The intermediary transaction SEO diagnose Taobao guest Cloud host technology Hall at present many search engines are the manual compilation of hierarchical theme directory and computer search software to provide keywords such as search methods to complete the Network Information Resources organization task. Yahoo is the typical representative of this class-style theme-Guide search engine. Yahoo's charm lies in its browsable ranking theme index. Based on the theme of the classification index, providing a comprehensive classification architecture, and combining high-quality search software, Yahoo successfully built a unique set of letters ...

Absrtact: In the opinion of Internet practitioner, the root of the problem of 12306 purchase ticket website lies in the incompatibility between the railway ministry's self-contained habit and the trend of Internet openness and transparency. In spite of the difficulty of docking with Tiero, programmers spontaneously set up in the eyes of Internet practitioners, the root cause of the 12306-ticket purchase site is the incompatibility between the railway Ministry's self-contained habits and the era of open and transparent Internet. Despite the difficulty of docking with "Tiero", "programmers" spontaneously set up an Open-source project designed to optimize and develop 12306. We...

Before, shared the outline of E-commerce site Capacity Planning, overall, capacity planning is a very complex work, involving various technical areas of professional content. Here today to share some ways to grasp the overall e-commerce site capacity planning. (1) Divide and conquer large e-commerce systems can be very complex, including the global major locations of the data centers, global wide area network, the data center of the local Exchange area network, security infrastructure, the data center of the computing infrastructure, storage subsystem, distributed database systems and so on. From the point of view of system design, the design of complex system ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall despite 2012 of years of technical keywords also continue to lock in the "cloud", "virtualization, large data, but the return to the enterprise IT architecture issues, we are not difficult to find, these endless new technologies brought to the enterprise, not only upgrade, but also bring some problems: "Because of these changes and challenges, there is a slight change in it construction, and there is a sense of getting out of control." 　　"Pu Yuan Middleware Business Department deputy general manager, product development Department general manager Wang Keqiang pointed out." Runaway Original ...

Blockchain is a new technology that is gradually emerging with the increasing popularity of digital cryptocurrencies such as Bitcoin.

The intermediary transaction SEO diagnose Taobao guest Cloud host technology Hall Station group, believed that many stationmaster are more concerned, A5 Group purchase also arranged several station group management software buys, the field is hot. 　　Near the time of the various key words in Baidu ranked the first few pages of the incident, let everyone see the strength of the station group, do not know whether seoer feel the pressure. January 6 Admin5 Thursday Edition chat activity, together A5 Group purchase channel http://tuan.admin5.com organization about "the station group development and the profit pattern discussion" question ...

Cloud computing data processing and storage are carried out on the cloud platform, computing resource owners and users of the separation has become the inherent characteristics of the cloud computing model, resulting in users of their own data security storage and privacy concerns are inevitable. Specifically, user data even includes privacy-related content in remote computing, there are potential for intentional or unintentional leaks in storage and communication, as well as data loss caused by failures such as power outages or downtime, even for unreliable cloud infrastructure and service providers, and may be inferred from the analysis of user behavior, Learn about the user's privacy letter ...